From 66eb1ebea91911bac513bd2a57e8a528cabca735 Mon Sep 17 00:00:00 2001
From: Martin Weinelt <hexa@darmstadt.ccc.de>
Date: Sun, 17 Dec 2023 18:17:22 +0100
Subject: [PATCH] xapian: enable parallel building

Cuts build time from 17 minutes down to 5 minutes on an Intel i7-8700k.
---
 pkgs/development/libraries/xapian/default.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkgs/development/libraries/xapian/default.nix b/pkgs/development/libraries/xapian/default.nix
index 73c3b1b57173..243ec53a3234 100644
--- a/pkgs/development/libraries/xapian/default.nix
+++ b/pkgs/development/libraries/xapian/default.nix
@@ -25,6 +25,8 @@ let
     buildInputs = [ libuuid zlib ];
     nativeBuildInputs = [ autoreconfHook ];
 
+    enableParallelBuilding = true;
+
     doCheck = true;
     env.AUTOMATED_TESTING = true; # https://trac.xapian.org/changeset/8be35f5e1/git